Furnace-charging box.



J. R. UAKLEY (Y4 O. H. CIVITTS.

FURNACE CHARGING BOX. I I APPLICATION FILED AUG-17,1917- 1,Q8,9l, Patented Oct. 29, 1918.

3 SHEETS-SHEET In J. R. OAKLEY & O. 'H. CIVHTS. FURNACE CHARGING 80X.

APPLICA ION FILED AUG. IT. 19H. 1,2823%. Pafenied 00s. 29,1015.

wemassm nmmmws AJ '2 a?! r /QQWW J. R. OAKLEY 52 O. H CWITTS FURNACE CHARGING BOX. APPLICAHON FILED AUG. 17, 1911 Patented 00$. 29, 1915 3 SHEETS--SHEET 3.

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JESSE-E. OAKLEY,.OF SVTIS'SVALE, AND OBRANGE H. GIVITTS. OF PITTSBURGH,

I IIE'NNSYLVANIA.

.. m inntharlasr.

Specification of Letters Patent.

atentett ti et.

Application filefi August 17, 1917i Serial No. 186.682.

I. (tanner (I nrrr CltilteliS of the Uniteii States. and residents, respectively, 01"

Swissvale an i Pittsbnrgh, both in the eon nt of Allegheny :liltl Stat e 0:" Pennsylvania, hare invented eertain new and useful improvements in t nrnaeeihurging Bones, of which the following, is a. speeiliention;

tbn: invention relates to eharging boxes. of the class nseii in (barging scrap metal and similar materials into o wn-hearth furnaces, and more. particularly to the. construction of integrally forn' etl east charging boxes; made of steel.

One objectol our invention is to provide a charging box having improved means whereby the casting of integrally turmo l charging boxes is facilitated anti the formation oi steel charging boxes in a metallic or chill lllOltl is made possible without; excessive cost: tine to loss caused by making: eraeked or otherwise detective castings.

A further object of our invention is to PYU- ride a metallic integrally formed cast. charging box of illlPl'OTtftl eonstrnetion and having novel means wherein the strength and durability of the charging boxes are in creased and wherein the weight of the charging boxes may be materially reduced without undue loss in strength or reduction in the durability of the cha 'giiig boxes.

Referring now to the drawings. forming part of this speeitieation, Figure 1 is a plan showing. in open position, a sectional chill mold. adapted for use in limiting the ini- Ill'UYCtl east metal (barging box forming :1. novel teat ore of this im'ention.

Fig. 2 is an eini elevation oi the chill mohl shown in Fig.

Fig. 3 is longitudinal side. elevation showing the, mohl with the parts in assembled position aini having a eharging box termed therein, the inohl ttilti eha box iieing ill stratetl in position at the eonipletion of the casting operation.

Fig. is a transverse section of the mold Shown in Fig. the section being taken on the line I l-JV of Fig. 3.

l ie. is a. plan of the chill mold in assemliltkti position.

Fig. 6 is a plan showing a preferred form of: charging box embodyingour invention.

i is a sectional Side elevation oi the charging: box shown in F g. (3. the section being taken on the line VII-Vii. of Fig. a.

Fig. 3 is an owl elevation showing one end of the eharging be); of Figs. (3 and T.

Fig. 9 is an end elevation similar to than of big. t showing the other or opposite end of the charging box of Figs. (1. 'i. and S.

in the aeeonipanyingr drawings, the letteri-t designates one and B the other 1' the. two seetions or members of the inntiroved chill mold. As shown, the members and B are pivotally connected at one side o hinge pins 2 which tit into registering holes in the pairs of logs or ears 3. 3 on the member A and atljaeent; legs 4. -.t on the other member The. member A. has a bottom sicies t3. t3 and a closed eml 7, the end. I conveniently t'orn'iingr a flat base or support on which the mold stands upright, (hiring the metal pouring or casting operation. The opposite end oi the member 4%. is open. not having a closure correspontling to the base or end 7. (See Fire. 1, and 3). A series of trans- \tl'se stitt'ening ribs 8 on the exterior of the member it serve to strengthen this member and prevent warping thereof.

The other member B of the mold. which is hollow or recess-eel, has a bottomformed by the parts 9. 9" and il sitles 1.0, it), and transverse partitions 1'1, 11 forming ends. the ends it, 11, however. not being loeateel at the extreme ends of the men'iber l3. and serving to connect. the. parts t) and S)" to the part Jot the. bottom. The bottom 9. sides 10, it). tllltl partitions 11. ll, of the member I) pl'ojeet into the. member A (see it}. and the member B is proiitleel with {tang 12, 12 which overlap correspondin; thing es it, one the sides 6. it of the member A. The. transverse partitions i1, 11 on the menr ber 13 forn'i botton'is or ends for the core. re eeiring pockets 16 anti 17 oi the sectional chill mold ,l'orn'iecl by the members It anti ii when assembled in ponrii'lg position. anti also forming entis for the recess 18 in the hollow member 1%. A transverse rib it) in the recess COHHLCMS the Sities it it) oi" the. member (See Figs. 3, t, and 5.

The, inner surface "20 of the sides 6. t3 oi the mold section A, is itornieil ot a serieo of reverse curves to provide a corrugated itace with the parallel corrugation extend-- one" transversely .aeros the width kl each stile t5, and the inner sorta oi the bottom curved transversely length thereof.

The surface 23 of the bottom 9 o;f the mold member B is trensverselv curred. so A s to eo-aet With the curved surface 21 of the bottom 5 ofthe member A informing an in- Wardly disheoi, or curvei'l bottom on the charging boxe A series of protubernnees '23 will he provided 011 the inner surface of the liiolitoin 9 of the mold section B so as to form a series of cored holes 30- in the bottom 30 of the cast charging boxes, thee holes providing for drainage of Water from the charging looxes when exposed. to the elements {is-the are during; nse in the stock yard oi the openhearth furnace plant,

The recesses or pockets l6 and 1'? formed in the ends of the sectional mold have dry sand cores 2%- :incl. :25 fitted therein to form the flanges and lugs on the ends of the chanting boxes C. l

When'desirecl green Sahel may be molded in the pockets 16 and 17 instead 03 using; dry sand cores, and in such ease plitliel'llS will. he empioyerl to shape the em i s in the green sencl, in providing for the llnnges (Hill logs on. the eln rging boxes.

In. 1118 hing charging; l)( 4 il'lVGlllJlOll a sectional n'iel'atllie mold. like that shown assembled in the open position Sllq'tinjfln l? 'i and. 2. the mold section f1. resting); on its encl flan gee 8, 8. When dry sand cores are nsocll tl'ie cores are then. as semhlefl in the pockets l6 and i'i, in the ends of? the mold "ion A, and nre smnrerl therein to yieri'nit oi. lmmllii'ig the molii, The top section B of the niolii is then closed. on the bottom section nnrl the ser i 'ms PL and B are then insteneil together, 9' xlei'nhlv by means of li-elnnips i and \J& .l; ;0,- ti in the manner shown in l! "i. The mold is than li'ifl'e l. into the ninight pomlion shown i Fig. n, the .w nihlezl z'nohl l'fE-Rtllljj on ihl h it provillwl en the 2 8 is i l ernl ion.

The molten me Ill in their poinmi, throng; the nto 3 info the niohl o as to entifill the cam lien in the iwoirl, the 2 r eii'm'ie 9H phll the Chrxtliltl' ei'nhetlyin jr our he); is rapidly eoolerl es it comes in contact with the chill smfeees of the mold, so that the niohii may he opened and the charging he); nmv remo ed, from the mold immediately the COHIPiQtlOll of the casting opera: l6i1,hllt'l in this Why the danger of e 'eeiong' of the m d l5! shrinkage thereof during cooling overcome. its 5001} as he charging; box is cooled snllieiently the XllOltl is laid length- "wise on the gz ronnil or floor and after the Wedges 227 are ,lOOFQfl'ill and the il-elen'ips 96 are removed, the h old lF- oq'ieneiil end the ehnrging 5201-; is rexno cl.

a hex becomes cooled the sprne is reinovhil from entl. :ino after liming hinnealeil, the charging hon: preiie .HlIJljf being annealed, it is in reznlfnos tor use.

The above [l :crilnnloperations are then carried out in the use of the mold in mail-ting sueees re charging boxes.

By rel'er 3 to liigs. 6 to 9 which show the eoiriitrnetirm of our improved eliztrgiii'g box (I in detziih it will be seen that the ehzu'ging boxes have corrugated sides 29 which are of substantially nniiform thieh-' noes tln'mighoin that the trnnsre the hex the. elmr chill snr'l length. of the boxes, m i 51 curved bottom 30 f curved inwaully. As tl e sides of are "H'Kfi'l. between the oi the mold, the S'l'llllliiage in the h th oi the zholili which is m: :i'i'rjmlnhle, w nniiormly thstrihntetl over the entire length of the nu. (l by reason of the e 'rngnterl side sin-feet the Slfli'fn oi" the charging l which grip the n'ietnl of lee ere :lorzne l, e elmrging boxes (lining; #aolixlil'entimx thereof at e shot the curves forming; the corrugations in which the ends of e n geempres swihle, the eonlhiv n or o? the said, (or s nlso no. A crackin the lllOlCl is avoided and i in which uiuh if n'n'l .M s 23.3 39 when cooling or i. soliiiiiying'. while he hinged mold members it anti ll permit of th; iii being quiehly opened :1" sum he box is eooletl snilirien in le ne completion oi the ponri The enils 31 an have ihe linnyp 53S "vial val thereon for us mites to ii-s r lJOXGS willy prothe elmrgmites :miii

Lion Will he the art. By D ho: l zr W-"ig es of SlllJSiml'l sin mterial the sides and bottom of the mold with curved surfaces instead of flat or plane surfaces, in forming the charging boxes, the

casting of an integrally formed charging l'JuX having a bottom, sides, and closed ends and embodying our invention is made pos sibler Modifications in the consiruction of the apparatus used in. casting charging bones may be El'illdfi, and the shape of the charging box also may he changed without departing from the invention defined in the appended ciain 1. Ame-stratus for costing integrally charging boxes comprising a I tallic mold having; chill surf'a .dapted to for i the sides and bottom of toe charging boxes, the chill surfaces of the mold being corrugated, and pockets in the ends of said mold in which the ends of the charging boxes are cast, said pockets being constructed and arranged to receive sand molds, in which the ends of the charging boxes are -formcd, and means for securing the mold sections in assembled relation during the casting operation.

2. Apparatus for costing integrelly formed charging boxes comprising a sectional Ine tellic mold having chill surfaces adapted to form the sides and bottom of the "barging boxes, the chill surfaces of the mold which form the sic es of the charging boxes being and arranged to receive sand molds in Which the ends of the charging boxes are formed, and means for securing the mold. sections in assembled relation during the casting operati ns,

A cast metal charging be); having integrally lorined' nd, side, and bottom portions, the inner surface of the bottom por tion being; convex and the outer surface con ca e, and the inner and outer surfaces of the side per ions being corrugated and of sulistP-mtislly 1 inn thickness,

4. A cast metal charging box having end portions integrally formed with corrugated. side portions and a transversely curved bottom portion, the side portions of said charging box being of substantially uniform thickness throughout the length thereof.

5. A cast metal charging box, integrally formed and having end portions, corrugated side portions, and a transversely curved bottom portion.

6. A cast metal charging box, integrally formed and having a bottom portion, end portions and corrugated s de portions.

lin testimony whereof We have hereunto set our hands.

JESSE R, OAKLEY. GRRANG l? H. (31V 

